10-20-2021, 12:43 PM | #1 |
Junior Member
Posts: 8
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Device: Kindle Touch
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Help with PDF conversion
Hello.
I'm unable to convert this PDF file to mobi (or any other ebook format). Tried calibre, underlying ebook-convert, online converters - they skip all the text. I can see the text in PDF readers and the PDF passes pdf validation tools (pdfinfo), but opening in PDF editors like Libre Office shows cover and 1300 empty pages. pdftotext also returns nothing. Any idea how to convert this file into a ebook? |
10-20-2021, 05:17 PM | #2 | |
Wizard
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Device: Kobo Forma, Nook
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That PDF has 1707 different "fonts".
If you copy/paste the text out, or try to search, you can tell it's all completely gibberish. They ran it through some sort of program that completely substitutes in all the characters. So on the surface, it may LOOK like a "C" + "h" + "a" + "p", but in reality, it's nonsense. You'll have to rerun that entire PDF through actual OCR. You can use any OCR programs you want, like:
The accuracy should be quite good, since the text is still vector (you can fully zoom in and it stays perfectly crisp). Here's the OCR I got out of Chapter 1 using Finereader 12: Quote:
but besides that, looks extremely accurate. Nothing a little elbow grease couldn't fix up. Last edited by Tex2002ans; 10-20-2021 at 05:20 PM. |
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10-21-2021, 05:17 AM | #3 |
Junior Member
Posts: 8
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Join Date: Nov 2010
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@Tex2002ans thank you.
You're right, looks like the OCR is the only way. |
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conversion, help please, pdf |
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